var templateDir;
var plus;
var minus;
var expand;
var hide;

function ulShow ( position ) {
    var uMenu = document.getElementById( 'u' + position );
    var image = document.getElementById( 'i' + position );

    if (uMenu==null) return;

    var imgname = image.getAttribute('src',false);

var usd = uMenu.style.display;

    if  (uMenu.style.display == 'block' || imgname == templateDir+'/img/'+minus) {
        uMenu.style.display = 'none';
        image.setAttribute('src', templateDir+'/img/'+plus);
        image.parentNode.setAttribute('title', expand);
    } else {
        uMenu.style.display = 'block';
        image.setAttribute("src", templateDir+'/img/'+minus);
        image.parentNode.setAttribute("title", hide);
    }
}